NITROBASS - Bass Amplifier PEAVEY - Free user manual and instructions

Product type	Bass amplifier head format
Output power	450 W at 2 Ω, 300 W at 4 Ω, 170 W at 8 Ω
Equalization	3-band active EQ with semi-parametric midrange
Contour control	Preset voicing (V-shaped curve)
Input attenuator	-10 dB for active/passive instruments
Tuner output	Jack with compensated level
Effects loop	Post-EQ, switchable by footswitch (optional)
Line Out output	Balanced XLR (600 Ω) with level control
Pre/Post EQ selector	For XLR output
Ground lift selector	For XLR output (eliminates ground loops)
Speaker protection	DDT™ (limiter) with Enable/Defeat selector
Preamp out	Preamp Out (after volume)
Power amp in	Power Amp In
Power supply	220-240 V / 50-60 Hz, 350 W
Fuse	F4A/250V (only replace with identical fuse)
Safety	Power cord with ground; do not block ventilation
Maintenance and cleaning	Unplug before cleaning; use a dry cloth; do not expose to moisture
Repairability	Have repairs done by a Peavey authorized repairer; no user-serviceable parts

Frequently Asked Questions - NITROBASS PEAVEY

What types of basses can I connect to the NitroBass?

The input works for all types of basses, active or passive. Use the -10 dB attenuator for high-output instruments.

How to adjust the equalization?

The 3-band active EQ includes Low (±15 dB), semi-parametric Mid (±15 dB with Mid Shift from 200 Hz to 5 kHz), and High (±15 dB) controls. The Contour control adds a preset V-shaped curve.

What is the DDT protection used for?

DDT™ (Distortion Detection Technique) is a limiter that protects the speakers by compressing the signal in case of clipping. It is recommended to keep it enabled (Enable).

How to use the effects loop?

Connect the Send to your effect input and the Return to the effect output. Use a footswitch (optional, ref. 00051000) to enable/disable the loop.

Which cable to use for the XLR Line Out output?

A standard balanced XLR cable. Use the Line Out Level control to adjust the level, and the Ground Lift selector if you encounter hum (ground loop).

Can I use two speaker cabinets?

Yes, the two speaker outputs are in parallel. The total impedance must not drop below 2 Ω (e.g., two 4 Ω cabinets).

How to connect a tuner?

Use the Tuner output (jack) located on the front panel. The level is compensated for optimal tuner operation.

What to do if the fuse blows?

Unplug the power cord and replace the fuse with an identical model (F4A/250V). If the problem persists, have the appliance repaired by a Peavey authorized technician.

How to clean the amplifier?

Unplug the device and use a dry, soft cloth. Do not use liquid or abrasive products. Make sure the ventilation slots are not obstructed.

Can I use the Preamp Out output for a second amplifier?

Yes, the Preamp Out output (after volume) allows connecting an external power amplifier. Note that the signal is also still present in the internal amplifier.

USER MANUAL NITROBASS PEAVEY

Professional Bass Amplifier

PEAVEY NITROBASS™ PROFESSIONAL BASS AMPLIPTER TURGER INPUT LINE OUT ENJALIZATION POST EQ EFX LOOP MASTER PATCH NITROBASS™ PROFESSIONAL BASS AMPLIPTER

PEAVY NITROBASS® PROFESSIONAL SABB AMPLIER

Intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.

Intended to alert the user of the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product.

CAUTION: Risk of electrical shock — DO NOT OPEN!

CAUTION: To reduce the risk of electric shock, do not remove cover. No user serviceable parts inside. Refer servicing to qualified service personnel.

WARNING: To prevent electrical shock or fire hazard, do not expose this appliance to rain or moisture. Before using this appliance, read the operating guide for further warnings.

Congratulations on your purchase of the Peavey NitroBass ^™ . The NitroBass includes an easy-to-use, three-band active EQ with shiftable mid-range control and a contour control (for that smiley-face EQ curve). These tone controls are so versatile you should be able to quickly dial up your own sound.

Also provided are a buffered tuner send jack, an electronically balanced XLR line out with its own level control, pre-post EQ switch, and a ground lift switch. The XLR output is before the master volume control, so you can adjust your stage volume without affecting the send to the main sound system.

A -10 dB input pad switch, footswitchable post-EQ effects loop, preamp output/power amp input patch points, and the DDT ^™ (speaker protection) enable/defeat switch add to the list of professional features found in the NitroBass.

For more information on operation and specifications we suggest that you spend a few minutes to look through this manual. Pay close attention to the safety precautions. They contain warnings that concern the safety of both you and your amp. Thank you for buying Peavey!

Features:

• Compact top box design
  • 450 watts into 2 Ω, 300 watts into 4 Ω, 170 watts into 8 Ω
• Three-band active EQ with shiftable mid-range control
• Contour control
• -10 dB pad switch (active/passive pickup switch)
• Buffered tuner send jack
• Footswitchable post-EQ effects loop
  • Electronically balanced XLR jack
  • Pre-/Post-EQ send switch for XLR jack
  • Ground lift switch for XLR jack
• DDT™ speaker protection with defeat switch
• Preamp out/power amp in jacks

REAR PANEL

4 2 POWER ON FUSE & AMP 120 VAC 60 Hz 350 WATTS + GROUND POUARITY 1 3 PEAVEY® NITROBASS™ PROFESSIONAL BASS AMPLIFIER OUTPUTS SPEAKER JACKS PARALLELED NOTE UTILIZATION OF DOT™ IS RECOMMENDED FOR MAXIMUM PERFORMANCE WITH HIGH LEVEL SIGNALS AND MAXIMUM SPEAKER PERFORMANCE CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN WARNING TO REDUCE THE RISK OF FIRE ON ELECTRIC SHOCK DO NOT EXPOSED THIS EQUIPENT TO RAIN ON MOISTURE, TO PREVENT THE RISK OF HARDIER SERVICE WITH NAME TYPE 250 VOLT SUBE. AVIS CRESQUE DE CHOC ELECTRIQUE - NE PAS OUVIRI REMULDER PAR UNISILE DE MEME TYPE ET DE 250 VOLTES. A PRODUCT OF PEAVEY ELECTRONICS CORP. MERIDIAN, MS MADE IN USA.

AC POWER FEATURES:

1. REMOVABLE AC POWER CORD

This receptacle is for the IEC line cord (included), which provides AC power to the unit. Connect the line cord to this connector and to a properly grounded AC supply. Damage to the equipment may occur if an improper line voltage is used. (See voltage marking on unit.) Never remove or cut the ground pin of the line cord plug. This unit is supplied with a properly rated line cord. When lost or damaged, replace this cord with one of the proper ratings.

NOTE: FOR UK ONLY

As the colors of the wires in the mains lead of this apparatus may not correspond with the colored markings identifying the terminals in your plug, proceed as follows: (1) The wire which is colored green and yellow must be connected to the terminal which is marked by the letter E, or by the earth symbol, or colored green or green and yellow. (2) The wire which is colored blue must be connected to the terminal which is marked with the letter N, or the color black. (3) The wire which is colored brown must be connected to the terminal which is marked with the letter L or color red.

2. POWER SWITCH

This switch is used to turn the NitroBass on or off. To turn the unit on, flip the switch to the "on" position.

3. GROUND POLARITY SWITCH

Three-position, rocker-type switch, which for most applications should be operated in the center (zero) position. If hum or noise is present with the ground switch in the center position, place the ground polarity switch to positive or negative (+ or -) to minimize hum; should a problem continue, consult your authorized Peavey dealer, the Peavey factory, or a qualified service technician. Note: The ground switch is not available on 220/240 volt models.

4. FUSE

The fuse is located within the fuse holder on the rear of the unit. If the fuse should fail, IT MUST BE REPLACED WITH THE SAME TYPE AND VALUE IN ORDER TO AVOID DAMAGE TO THE EQUIPMENT AND TO PREVENT VOIDING THE WARRANTY. If the amp repeatedly blows fuses, it should be taken to a qualified service center for repair.

NOTE: THE FUSE SHOULD ONLY BE REPLACED WHEN THE REMOVABLE POWER CORD HAS BEEN DISCONNECTED FROM ITS CHASSIS RECEPTACLE (1).

5. POWER/STATUS LED

Located on front panel this LED illuminates green when the Power Switch is in the “ON” position and AC power is supplied. During normal operation the LED also acts as a DDT indicator. The LED illuminates red when the DDT speaker protection is active. When DDT is defeated, the LED will illuminate red when clipping occurs.

6 7 8 10 11 12 13 14 15 16 5 24 INPUT ACTIVE PREVIE INPUT SELECT NORMAL PRE GAIN 5 0-10 CONTOUR +15-+15 MID MID SHIFT EQUALIZATION -15+15 MID HIGH POWER/ STARS DOT™ SPEAKER PROTECTION ENABE F DEP OUT PEAVEY® DESIGNED AND MADE IN USA. TUNER LINE OUT POST EQ EFX. LOOP EFX. DEFEAT POST/EQ EFX. DEFEAT NITROBASS™ PROFESSIONAL BASS AMPLIFIER SEND LEVEL PIN(2-+) PREEQ POSTEQ GND, COLD,LEFT FOOT/SWITCH SEND RETURN OUT IN 9 18 17 19 20 23 21 22 25 26

FRONT PANEL FEATURES:

6. INPUT JACK

This input will accept signals from all types of bass pickups.

7. INPUT PAD SWITCH

Provided for instruments that have extremely high output, which can result in overdriving (distorting) the input stage. Pressing the switch to its “in” or “active” position reduces the level of the input signal by 10 dB.

8. BRIGHT SWITCH

Provides a preset boost to treble frequencies when pressed.

9. TUNER SEND JACK

A 1/4" jack is provided for connecting an instrument tuner. This jack is buffered off the input jack so it is just like plugging directly into the tuner.

10. PRE GAIN CONTROL

Controls the input gain of the preamplifier.

11. CONTOUR CONTROL

Provides a specially voiced EQ as the knob is rotated clockwise. When the knob is fully counterclockwise (set to 0), there is no voicing added.

12. LOW CONTROL

An active tone control (shelving type, ±15 dB) that varies the low frequency boost or cut.

13. MID CONTROL

An active tone control (peak/notch, ±15 dB) that varies the midrange boost or cut.

14. MID SHIFT CONTROL

Selects the frequency band (200 — 2 kHz) that the mid control cuts or boosts.

15. HIGH CONTROL

An active tone control (shelving type, ±15 dB) that varies the high frequency boost or cut.

16. VOLUME CONTROL

Controls the overall volume level of the amplifier. The final level adjustment should be made after the desired sound has been achieved.

17. LINE OUT—XLR JACK

Provides low impedance, electronically balanced signal for patching into a sound reinforcement or recording console.

18. LINE OUT LEVEL CONTROL

Controls the output level of the balanced line out.

19. PRE-/POST-EQ SELECT SWITCH

Allows selection between a Pre-EQ (switch set to the “out” position) or a Post-EQ (switch set to the “in” position) send to the XLR line out jack.

20. GROUND LIFT SWITCH

Provided to lift the ground on the XLR jack when ground loops are encountered.

21. EFFECTS SEND JACK

Output for supplying signals to external low-level effects or signal processing equipment.

22. EFFECTS RETURN JACK

Input for returning signals from external low-level effects or signal processing equipment.

23. EFFECTS LOOP REMOTE SWITCH JACK

This jack accommodates the remote footswitch (optional part number 00051000 ON/OFF single button switch), which is used to remove the effects loop from the signal path. The remote footswitch essentially acts as a bypass to punch in or punch out from your external effects.

24. DDT™ SPEAKER PROTECTION DEFEAT SWITCH

DDT ^™ speaker protection is defeated when the push button is in the “in” position. We recommend that DDT be enabled at all times to protect the speakers.

25. PREAMP OUT JACK

This 1/4" jack is used to route the preamp signal to external inputs, such as the input of an additional power amp. The signal is post volume control. Use of this jack does not defeat the signal to the NitroBass amp (some volume difference may be noticed due to the impedance change experienced when adding an external unit to the signal patch).

26. POWER AMP IN JACK

This 1/4" jack is used to input an external signal to the power amp section of the NitroBass. Using this jack will disconnect any signal from the preamp section. Using this jack along with the preamp out jack creates a possible second effects loop.

POWER ON PEAVEY® FUSE 8 AMP 120 VAC 60 Hz + - 350 WATTS GROUND POLARITY OUTPUTS SPEAKER JACKS PARALLELED WARNING TO RE RISK OF ECTRIC SHOCK OT OPEN WARNING TO RE LICE THE RISK OF FIRE OR ELECTRIC SHOCK OUT TO RAIN ON MOISTURE HAZARD REPLACE WITH AVIS/IRICULES ON C# REEMPLATER PAS LIME GIN A PRODUCT OF PEAVEY ELECTRONICS CORP. VERIDIAN, MS NOTE: UTILIZATION OF DOT™ I RECOMMENDED FOR MAXIMUM PERFORMANCE WITH HIGH LEVEL SIGNALS AND MAXIMUM SPEAKER PERFORMANCE. 45 WATTS 38.5V, MS 20 MEDIUM AMPLIFIER LOAD CLASS 2 WIRING 27 28 27 NITROBASS™ PROFESSIONAL BASS AMPLIFIER

REAR PANEL FEATURES:

27. POWER CORD RETAINERS

Use the Power Cord Retainers to wrap and store your cable while storing or transporting your NitroBass. It is best to disconnect the cord from the unit before wrapping.

28. SPEAKER OUTPUT JACKS

These two 1/4" jacks provide the powered signal from the amplifier. Each connector is electrically the same (in parallel). Use one of the jacks to connect your speaker cabinet and the other to add a second speaker cabinet in parallel. The minimum speaker load impedance is 2 ohms (or two 4-ohm speakers in parallel).

Warning: To prevent the amplifier from overheating, the front fan and rear-located vents should always remain clear of obstructions.

NITROBASS™
Block Diagram

graph TD
    A["Input"] --> B["-10 db Pad"]
    B --> C["Gain"]
    C --> D["Contour"]
    D --> E["Infrasonic Filter"]
    E --> F["Shelving EQ"]
    F --> G["High Shelf (Treble) +/- 15 dB"]
    F --> H["Low Shelf (Bass) +/- 15 dB"]
    G --> I["Midrange Shift 200HZ - 2KHZ"]
    H --> J["Midrange Cut/Boost +/- 15 dB"]
    I --> K["Buffer"]
    J --> L["Buffer"]
    K --> M["Effects Send"]
    L --> N["Effects Loop -10 dB, 0, 315 VRMS"]
    N --> O["Effects Return"]
    P["Tuner Send Instrument Level"] --> Q["Buffer"]
    Q --> R["Pre-/Post EQ Select"]
    R --> S["Pre EQ"]
    S --> T["Post EQ"]
    T --> U["Line Level 1 VRMS, 0dB"]
    U --> V["Pwr Amp In"]
    V --> W["PreAmp Out Full Range"]
    W --> X["Buffer"]
    X --> Y["Volume CW"]
    Y --> Z["Buffer"]
    Z --> AA["Switch Logic"]
    AA --> AB["Effects Loop Footswitch"]
    AC["Balanced Line Out"] --> AD["+"]
    AE["Line Drivers"] --> AF["-"]
    AG["Ground Lift"] --> AH["Ground Lift"]
    AI["External Speaker Jack"] --> AJ["Power Amp"]
    AJ --> AK["Buffer/DDT"]
    AK --> AL["DDT Defeat"]
    AL --> AM["RD GN"]
    AM --> AN["Status LED Green = Pwr On Red = DDT/Clip"]
    AN --> AO["Line Level 1 VRMS, 0dB"]
    AO --> AP["Pwr Amp In"]
    AP --> AQ["Pwr Amp In"]
    AQ --> AR["Pwr Amp In"]
    AR --> AS["Pwr Amp In"]
    AS --> AT["Pwr Amp In"]
    AT --> AU["Pwr Amp In"]
    AU --> AV["Pwr Amp In"]
    AV --> AW["Pwr Amp In"]
    AW --> AX["Pwr Amp In"]
    AX --> AY["Pwr Amp In"]

NITROBASS™

Recommend Settings

Rock Setting Out Set to appropriate level for instrument used Set as necessary INPUT ACTIVE BRIGHT 5 PRE GAIN 5 CONTOUR 0 -15 +15 0 -15 +15 1K 200 8K -15 +15 MID MID SHIFT HIGH 5 VOLUME POWER/STATUS DOT™ SPEAKER PROTECTION ENABLE DEEAT DESIGNED AND MADE IN U.S.A. INPUT EQUALIZATION TUNER LINE OUT POST EQ EFX. LOOP EFX. DEEAT PATCH SEND (FIN 2 - H) LOW Z BALANCED GND. GND.LIFT LEVEL FOOT SWITCH SEND RETURN PRE AMP POWER AMP OUT IN NITROBASS™ PROFESSIONAL BASS AMPLIFIER

NOTE: "DDT should be utilized for maximum speaker protection"

Slap Setting In Set to appropriate level for instrument used Doesn't matter when Mid is set to 0 Set as necessary INPUT ACTIVE PASSIVE INPUT SELECT BRIGHT NORMAL PRE GAIN 5 0 10 CONTOUR 5 0 -15 +15 LOW MID 1K 200 2K MID SHIFT 15 +15 HIGH 5 0 10 VOLUME POWER/STATUS DOT™ SPEAKER PROTECTION ENABLE DEFEAT DESIGNED AND MADE IN USA. INPUT EQUALIZATION TUNER LINE OUT EFX. DEFEAT POST EQ EFX. LOOP TARGET SEND 5 (PN2=4) LEVEL LOW Z BALANCED PRE EQ POST EQ GND. GND.LIFT POST EQ EFX. LOOP EFX. DEFEAT FOOT SWITCH SEND RETURN PATCH PRE AMP POWER AMP OUT IN NITROBASS™ PROFESSIONAL BASS AMPLIFIER

NOTE: "DDT should be utilized for maximum speaker protection"

Blues/ Country Setting Out Set to appropriate level for instrument used Set as necessary INPUT RASSKE INPUT SELECT BRIGHT 5 PRE GAIN 0 10 0 10 CONTOUR -15 -15 LOW -15 +15 MID 200 18K MID SHIFT -15 +15 HIGH 5 POWER/ STATUS DOT™ SPEAKER PROTECTION ENABLE DEEAT DESIGNED AND MADE IN USA. INPUT EQUALIZATION TUNER LINE OUT POST EQ EFX. LOOP SEND 5 PHN2 = + 0 10 LEVEL LOW Z BALANCED PRE EQ POST EQ GND. GND.LIFT EFX. DEFEAT FOOT SWITCH SEND RETURN MASTER PATCH PRE AMP POWER AMP OUT IN NITROBASS™ PROFESSIONAL BASS AMPLIFIER

NOTE: "DDT should be utilized for maximum speaker protection"

NITROBASS™

SPECIFICATIONS

SYSTEM SPECIFICATIONS:

Mains Fuse = 8 amps

Mains Voltage = 120 VAC 60 Hz

Power Consumption = 350 watts

Hum and noise: Typically greater than -89 dB unweighted with controls set as follows...

Pad = Passive

Bright = Normal

Pre gain = 5

Contour = 0

Low = 0

Mid = 0

Mid Shift = 1kHz

High = 0

Volume = 5

POWER AMPLIFIER SECTION:

PROTECTION:

Electronic current limit protection circuit.

Thermal protection circuit.

D.C. crowbar protection circuit.

DDT speaker protection circuit with defeat switch.

Variable speed fan, thermally controlled

GENERAL INFORMATION:

Minimum load = 2 ohms

Input sensitivity: 1.0 VRMS

Two 1/4" speaker jacks in parallel

RATED POWER OUTPUT:

450 watts (30.00 V RMS) into 2 ohms

300 watts (34.64 V RMS) into 4 ohms

170 watts (36.88 V RMS) into 8 ohms

TYPICAL POWER OUTPUT

475 watts (30.82 V RMS) into 2 ohms with no more than 1% THD+N

308 watts (35.10 V RMS) into 4 ohms with no more than 1% THD+N

177 watts (37.63 V RMS) into 8 ohms with no more than 1% THD+N

NOISE:

Typically greater than 102 dB below full power @ 8 ohms unweighted

DDT Dynamic Range:

Typically greater than +15 dB

FREQUENCY RESPONSE:

+0/-0.61 dB, 100mW to 160 W RMS, 20 Hz to 20 kHz

(8 ohm load, typically below 0.2% THD+N)

PREAMPLIFIER SECTION:

SETTINGS FOR MEASUREMENTS UNLESS

OTHERWISE NOTED:

Pad = out (Passive)

Bright = out (Normal)

Pre-Gain = 5 (12 o'clock)

Contour = 0 (fully counterclockwise)

Bass = 0 (12 o'clock)

Mid = 0 (12 o'clock)

Mid Shift = 0 (12 o'clock)

High = 0 (12 o'clock)

Master Volume = 10 (fully Clockwise)

Line Out Level = 10 (fully Clockwise)

INPUT SENSITIVITY (Level to achieve full power):

With Pad Out...

Nominal input: 100 mV RMS

Minimum input: 9 mV(pre gain and master fully CW)

Maximum input: 3.0 V(maximum signal at input before clipping occurs)

With Pad -10 dB in:

Nominal input: 315 mV RMS

Minimum input: 28 mV (pre gain and master fully CW)

Maximum input: 9 V (maximum signal at input before clipping occurs)

EQUALIZATION:

Bright boost: + 8 dB @ 5 kHz

Contour: Special frequency compensation

Bass: ± 15 dB @ 30 Hz, Shelving type Eq

Mid : ± 15 dB @ 200 @ 2 kHz (Mid shift control determines center frequency)

Mid Shift: 200 to 2 kHz

High: ±15 dB @ 8 kHz, Shelving type Eq

TUNER SEND:

Instrument level through a buffer

LINE OUT:

-∞ to -10 dB (for nominal input).

Level is dependent on level control setting and pre gain setting

EFFECTS LOOP:

Set for -10 dB (0.315 V RMS) with pre @ 5, Master @ 10

Controlled via footswitch, ground tip to defeat.

PREAMP OUTPUT:

1 V RMS nominal

ESPAÑOL

NITROBASS™

NOTE: "DDT should be utilized for maximum speaker protection"

Slap Setting In Set to appropriate level for instrument used Doesn't matter when Mid is set to 0 Set as necessary INPUT ACTIVE PASSIVE INPUT SELECT BRIGHT NORMAL PRE GAIN 5 0 10 CONTOUR 5 0 -15 +15 LOW MID 1K 200 2K MID SHIFT 15 +15 HIGH 5 0 10 VOLUME POWER/STATUS DOT™ SPEAKER PROTECTION ENABLE DEFEAT DESIGNED AND MADE IN USA. INPUT EQUALIZATION TUNER LINE OUT EFX. DEFEAT POST EQ EFX. LOOP TARGET SEND 5 (PN2=4) LEVEL LOW Z BALANCED PRE EQ POST EQ GND. GND.LIFT POST EQ EFX. LOOP EFX. DEFEAT FOOT SWITCH SEND RETURN PATCH PRE AMP POWER AMP OUT IN NITROBASS™ PROFESSIONAL BASS AMPLIFIER

NOTE: "DDT should be utilized for maximum speaker protection"

Blues/ Country Setting Out Set to appropriate level for instrument used Set as necessary INPUT RASSKE INPUT SELECT BRIGHT 5 PRE GAIN 0 10 0 10 CONTOUR -15 -15 LOW -15 +15 MID 200 18K MID SHIFT -15 +15 HIGH 5 POWER/ STATUS DOT™ SPEAKER PROTECTION ENABLE DEEAT DESIGNED AND MADE IN USA. INPUT EQUALIZATION TUNER LINE OUT POST EQ EFX. LOOP SEND 5 PHN2 = + 0 10 LEVEL LOW Z BALANCED PRE EQ POST EQ GND. GND.LIFT EFX. DEFEAT FOOT SWITCH SEND RETURN MASTER PATCH PRE AMP POWER AMP OUT IN NITROBASS™ PROFESSIONAL BASS AMPLIFIER

NOTE: "DDT should be utilized for maximum speaker protection"

NITROBASS™

ESPECIFICACIONES

Fusible principal = 8 amps

Voltaje = 120 VAC 60 Hz

Consumo de poder = 350 wats

CARACTERISTIQUES D'ALIMENTATION:

1. CONNECTEUR IEC

This 1/4" jack is used to input an external signal to the power amp section of the NitroBass. Using this jack will disconnect any signal from the preamp section. Using this jack along with the preamp out jack creates a possible second effects loop.

POWER ON PEAVEY® FUSE F4A/250V 220-240V/ 50/60 Hz 350 WATTS OUTPUTS SPEAKER JACKS PARALLELED WARNING TO RE ELECTRIC SHOCK NOT OPEN C UION RISK OF DO ELECTRIC SHOCK TO EXPIRE THIS EQUIPMENT TO TRAIN OR MOUST OR HAZARD REPLACE WITH AVIS RISQUE DE CHI REMACDER AND FURGER A PRODUCT OF PE MERIDIAN, M. 450 WATTS 36.9V RMS 20 MINIMUM AMPURER LOAD CLASS 2 WRINS NOTE: UTILIZATION OF DOT™ IS RECOMMENDED FOR MAXIMUM PERFORMANCE WITH HIGH LEVEL SIGNALS AND MAXIMUM SPEAKER PERFORMANCE 27 28 27 NITROBASS™ PROFESSIONAL BASS AMPLIFIER

PANNEAU ARRIERE:

27. PATTES D'ENROULEMENT

NOTE: "DDT should be utilized for maximum speaker protection"

Slap Setting In Set to appropriate level for instrument used Doesn't matter when Mid is set to 0 Set as necessary INPUT ACTIVE PASSIVE INPUT SELECT BRIGHT NORMAL PRE GAIN 5 0 10 CONTOUR 5 0 -15 +15 LOW MID 1K 200 2K MID SHIFT 15 +15 HIGH 5 0 10 VOLUME POWER/STATUS DOT™ SPEAKER PROTECTION ENABLE DEFEAT DESIGNED AND MADE IN USA. INPUT EQUALIZATION TUNER LINE OUT EFX. DEFEAT POST EQ EFX. LOOP TARGET SEND 5 (PN2=4) LEVEL LOW Z BALANCED PRE EQ POST EQ GND. GND.LIFT POST EQ EFX. LOOP EFX. DEFEAT FOOT SWITCH SEND RETURN PATCH PRE AMP POWER AMP OUT IN NITROBASS™ PROFESSIONAL BASS AMPLIFIER

NOTE: "DDT should be utilized for maximum speaker protection"

Blues/ Country Setting Out Set to appropriate level for instrument used Set as necessary INPUT RASSKE INPUT SELECT BRIGHT 5 PRE GAIN 0 10 0 10 CONTOUR -15 -15 LOW -15 +15 MID 200 18K MID SHIFT -15 +15 HIGH 5 POWER/ STATUS DOT™ SPEAKER PROTECTION ENABLE DEEAT DESIGNED AND MADE IN USA. INPUT EQUALIZATION TUNER LINE OUT POST EQ EFX. LOOP SEND 5 PHN2 = + 0 10 LEVEL LOW Z BALANCED PRE EQ POST EQ GND. GND.LIFT EFX. DEFEAT FOOT SWITCH SEND RETURN MASTER PATCH PRE AMP POWER AMP OUT IN NITROBASS™ PROFESSIONAL BASS AMPLIFIER

NOTE: "DDT should be utilized for maximum speaker protection"

NITROBASS™

SPECIFICATIONS

SYSTEM SPECIFICATIONS:

Mains Fuse = 8 amps

Mains Voltage = 120 VAC 60 Hz

Power Consumption = 350 watts

Hum and noise: Typically greater than -89 dB unweighted with controls set as follows...

Pad = Passive

Bright = Normal

Pre gain = 5

Contour = 0

Low = 0

Mid = 0

Mid Shift = 1kHz

High = 0

Volume = 5

POWER AMPLIFIER SECTION:

PROTECTION:

Electronic current limit protection circuit.

Thermal protection circuit.

D.C. crowbar protection circuit.

DDT speaker protection circuit with defeat switch.

Variable speed fan, thermally controlled

GENERAL INFORMATION:

Minimum load = 2 ohms

Input sensitivity: 1.0 VRMS

Two 1/4" speaker jacks in parallel

RATED POWER OUTPUT:

450 watts (30.00 V RMS) into 2 ohms

300 watts (34.64 V RMS) into 4 ohms

170 watts (36.88 V RMS) into 8 ohms

TYPICAL POWER OUTPUT

475 watts (30.82 V RMS) into 2 ohms with no more than 1% THD+N

308 watts (35.10 V RMS) into 4 ohms with no more than 1% THD+N

177 watts (37.63 V RMS) into 8 ohms with no more than 1% THD+N

NOISE:

Typically greater than 102 dB below full power @ 8 ohms unweighted

DDT Dynamic Range:

Typically greater than +15 dB

FREQUENCY RESPONSE:

+0/-0.61 dB, 100mW to 160 W RMS, 20 Hz to 20 kHz

(8 ohm load, typically below 0.2% THD+N)

PREAMPLIFIER SECTION:

SETTINGS FOR MEASUREMENTS UNLESS

OTHERWISE NOTED:

Pad = out (Passive)

Bright = out (Normal)

Pre-Gain = 5 (12 o'clock)

Contour = 0 (fully counterclockwise)

Bass = 0 (12 o'clock)

Mid = 0 (12 o'clock)

Mid Shift = 0 (12 o'clock)

High = 0 (12 o'clock)

Master Volume = 10 (fully Clockwise)

Line Out Level = 10 (fully Clockwise)

INPUT SENSITIVITY (Level to achieve full power):

With Pad Out...

Nominal input: 100 mV RMS

Minimum input: 9 mV(pre gain and master fully CW)

Maximum input: 3.0 V(maximum signal at input before clipping occurs)

With Pad -10 dB in:

Nominal input: 315 mV RMS

Minimum input: 28 mV (pre gain and master fully CW)

Maximum input: 9 V (maximum signal at input before clipping occurs)

EQUALIZATION:

Bright boost: + 8 dB @ 5 kHz

Contour: Special frequency compensation

Bass: ± 15 dB @ 30 Hz, Shelving type Eq

Mid : ± 15 dB @ 200 @ 2 kHz (Mid shift control determines center frequency)

Mid Shift: 200 to 2 kHz

High: ±15 dB @ 8 kHz, Shelving type Eq

TUNER SEND:

Instrument level through a buffer

LINE OUT:

-∞ to -10 dB (for nominal input).

Level is dependent on level control setting and pre gain setting

EFFECTS LOOP:

Set for -10 dB (0.315 V RMS) with pre @ 5, Master @ 10

Controlled via footswitch, ground tip to defeat.

PREAMP OUTPUT:

1 V RMS nominal

DEUTSCH

NITROBASS™

NOTE: "DDT should be utilized for maximum speaker protection"

Slap Setting In Set to appropriate level for instrument used Doesn't matter when Mid is set to 0 Set as necessary INPUT ACTIVE PASSIVE INPUT SELECT BRIGHT NORMAL PRE GAIN 5 0 10 CONTOUR -15 +15 LOW MID 1K 200 2K MID SHIFT -15 +15 HIGH 5 POWER/ STATUS DOT™ SPEAKER PROTECTION ENABLE DEFEAT DESIGNED AND MADE IN USA. INPUT EQUALIZATION TUNER SEND LINE OUT (PN2=4) LEVEL LOW Z BALANCED PRE EQ POST EQ GND. GND.LIFT POST EQ EFX. LOOP EFX. DEFEAT FOOT SWITCH SEND RETURN MASTER PATCH PRE AMP POWER AMP OUT IN NITROBASS™ PROFESSIONAL BASS AMPLIFIER

NOTE: "DDT should be utilized for maximum speaker protection"

Blues/ Country Setting Out Set to appropriate level for instrument used Set as necessary INPUT RASSKE INPUT SELECT BRIGHT 5 PRE GAIN 0 10 0 10 CONTOUR -15 -15 LOW -15 +15 MID 200 18K MID SHIFT -15 +15 HIGH 5 POWER/ STATUS DOT™ SPEAKER PROTECTION ENABLE DEEAT DESIGNED AND MADE IN USA. INPUT EQUALIZATION TUNER LINE OUT POST EQ EFX. LOOP SEND 5 PHN2 = + 0 10 LEVEL LOW Z BALANCED PRE EQ POST EQ GND. GND.LIFT EFX. DEFEAT FOOT SWITCH SEND RETURN MASTER PATCH PRE AMP POWER AMP OUT IN NITROBASS™ PROFESSIONAL BASS AMPLIFIER

NOTE: "DDT should be utilized for maximum speaker protection"

NITROBASS™

SPECIFICATIONS

TECHNISCHE DATEN:

Netzsicherung = 8 A

Bright-Boost: + 8 dB @ 5 kHz

-10 dB (0,315 V RMS) @ Pre-Gain 5, Master 10

Effective Date: July 1, 1998

What This Warranty Covers

Your Peavey Warranty covers defects in material and workmanship in Peavey products purchased and serviced in the U.S.A. and Canada.

What This Warranty Does Not Cover

The Warranty does not cover: (1) damage caused by accident, misuse, abuse, improper installation or operation, rental, product modification or neglect; (2) damage occurring during shipment; (3) damage caused by repair or service performed by persons not authorized by Peavey; (4) products on which the serial number has been altered, defaced or removed; (5) products not purchased from an Authorized Peavey Dealer.

Who This Warranty Protects

This Warranty protects only the original retail purchaser of the product.

How Long This Warranty Lasts

The Warranty begins on the date of purchase by the original retail purchaser. The duration of the Warranty is as follows:

Product Category	Duration
Guitars/Basses, Amplifiers, Pre-Amplifiers, Mixers, Electronic Crossovers and Equalizers	2 years *(+ 3 years)
Drums	2 years *(+ 1 year)
Enclosures	3 years *(+ 2 years)
Digital Effect Devices and Keyboard and MIDI Controllers	1 year *(+ 1 year)
Microphones	2 years
Speaker Components (incl. speakers, baskets, drivers, diaphragm replacement kits and passive crossovers) and all Accessories	1 year
Tubes and Meters	90 days

[*denotes additional warranty period applicable if optional Warranty Registration Card is completed and returned to Peavey by original retail purchaser within 90 days of purchase.]

What Peavey Will Do

We will repair or replace (at Peavey's discretion) products covered by warranty at no charge for labor or materials. If the product or component must be shipped to Peavey for warranty service, the consumer must pay initial shipping charges. If the repairs are covered by warranty, Peavey will pay the return shipping charges.

How To Get Warranty Service

(1) Take the defective item and your sales receipt or other proof of date of purchase to your Authorized Peavey Dealer or Authorized Peavey Service Center.

OR

(2) Ship the defective item, prepaid, to Peavey Electronics Corporation, International Service Center, 412 Highway 11 & 80 East, Meridian, MS 39301 or Peavey Canada Ltd., 95 Shields Court, Markham, Ontario, Canada L3R 9T5. Include a detailed description of the problem, together with a copy of your sales receipt or other proof of date of purchase as evidence of warranty coverage. Also provide a complete return address.

Limitation of Implied Warranties

ANY IMPLIED WARRANTIES, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO THE LENGTH OF THIS WARRANTY.

Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.

Exclusions of Damages

PEAVEY'S LIABILITY FOR ANY DEFECTIVE PRODUCT IS LIMITED TO THE REPAIR OR REPLACEMENT OF THE PRODUCT, AT PEAVEY'S OPTION. IF WE ELECT TO REPLACE THE PRODUCT, THE REPLACEMENT MAY BE A RECONDITIONED UNIT. PEAVEY SHALL NOT BE LIABLE FOR DAMAGES BASED ON INCONVENIENCE, LOSS OF USE, LOST PROFITS, LOST SAVINGS, DAMAGE TO ANY OTHER EQUIPMENT OR OTHER ITEMS AT THE SITE OF USE, OR ANY OTHER DAMAGES WHETHER INCIDENTAL, CONSEQUENTIAL OR OTHERWISE, EVEN IF PEAVEY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you.

This Warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

If you have any questions about this warranty or service received or if you need assistance in locating an Authorized Service Center, please contact the Peavey International Service Center at [phone] / Peavey Canada Ltd. at [phone].

Features and specifications subject to change without notice.

IMPORTANT SAFETY INSTRUCTIONS

WARNING: When using electric products, basic cautions should always be followed, including the following:

1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water. For example, near or in a bathtub, swimming pool, sink, wet basement, etc.
6. Clean only with a damp cloth.
7. Do not block any of the ventilation openings. Install in accordance with manufacturer's instructions. It should not be placed flat against a wall or placed in a built-in enclosure that will impede the flow of cooling air.
8. Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including amplifiers) that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding plug. The wide blade or third prong is provided for your safety. When the provided plug does not fit into your inlet, consult an electrician for replacement of the obsolete outlet. Never break off the grounding. Write for our free booklet “Shock Hazard and Grounding”. Connect only to a power supply of the type marked on the unit adjacent to the power supply cord.
10. Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point they exit from the apparatus.
11. Only use attachments/accessories provided by the manufacturer.
12. Use only with a cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.
13. Unplug this apparatus during lightning storms or when unused for long periods of time.
14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
15. If this product is to be mounted in an equipment rack, rear support should be provided.
16. Exposure to extremely high noise levels may cause a permanent hearing loss. Individuals vary considerably in susceptibility to noise-induced hearing loss, but nearly everyone will lose some hearing if exposed to sufficiently intense noise for a sufficient time. The U.S. Government's Occupational and Health Administration (OSHA) has specified the following permissible noise level exposures:

Duration Per Day In Hours

8

6

4

3

2

1 1/2

1

1/2

1/4 or less

Sound Level dBA, Slow Response

90

92

95

97

100

102

105

110

115

According to OSHA, any exposure in excess of the above permissible limits could result in some hearing loss. Ear plugs or protectors to the ear canals or over the ears must be worn when operating this amplification system in order to prevent a permanent hearing loss, if exposure is in excess of the limits as set forth above. To ensure against potentially dangerous exposure to high sound pressure levels, it is recommended that all persons exposed to equipment capable of producing high sound pressure levels such as this amplification system be protected by hearing protectors while this unit is in operation.

SAVE THESE INSTRUCTIONS!

PEAVEY®

Features and specifications subject to change without notice.

Peavey Electronics Corporation • 711 A Street • Meridian • MS • 39301

[phone] • FAX [phone] • www.peavey.com